Measurement of the Bc+ meson lifetime using the decay mode Bc+ --> J/Psie+nue.
نویسندگان
- A Abulencia
- D Acosta
- J Adelman
- T Affolder
- T Akimoto
- M G Albrow
- D Ambrose
- S Amerio
- D Amidei
- A Anastassov
- K Anikeev
- A Annovi
- J Antos
- M Aoki
- G Apollinari
- J-F Arguin
- T Arisawa
- A Artikov
- W Ashmanskas
- A Attal
- F Azfar
- P Azzi-Bacchetta
- P Azzurri
- N Bacchetta
- H Bachacou
- W Badgett
- A Barbaro-Galtieri
- V E Barnes
- B A Barnett
- S Baroiant
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- G Bauer
- F Bedeschi
- S Behari
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- A Belloni
- E Ben Haim
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- A Beretvas
- J Beringer
- T Berry
- A Bhatti
- M Binkley
- D Bisello
- R E Blair
- C Blocker
- B Blumenfeld
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- A Bodek
- V Boisvert
- G Bolla
- A Bolshov
- D Bortoletto
- J Boudreau
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- B Brau
- C Bromberg
- E Brubaker
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- H S Budd
- S Budd
- K Burkett
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- A Napier
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- X Portell
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- A Pronko
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- N van Remortel
- P Renton
- M Rescigno
- S Richter
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- A Robson
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- A Scribano
- F Scuri
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- S Seidel
- Y Seiya
- A Semenov
- L Sexton-Kennedy
- I Sfiligoi
- M D Shapiro
- T Shears
- P F Shepard
- D Sherman
- M Shimojima
- M Shochet
- Y Shon
- I Shreyber
- A Sidoti
- P Sinervo
چکیده
We present a measurement of the Bc+ meson lifetime in the decay mode Bc+ --> J/Psie+nue using the Collider Detector at Fermilab II detector at the Fermilab Tevatron Collider. From a sample of about of 360 pb(-1) of pp collisions at square root of s = 1.96 TeV, we reconstruct J/Psie+ pairs with invariant mass in the kinematically allowed range 4< M(J/Psie) < 6 GeV/c2. A fit to the decay-length distribution of 238 signal events yields a measured Bc+ meson lifetime of 0.463(-0.065)(+0.073)(stat) +/- 0.036(syst) ps.
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عنوان ژورنال:
- Physical review letters
دوره 97 1 شماره
صفحات -
تاریخ انتشار 2006